28002793079 has 4 divisors (see below), whose sum is σ = 28039019976. Its totient is φ = 27966566184.

The previous prime is 28002793069. The next prime is 28002793081. The reversal of 28002793079 is 97039720082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28002793079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002793019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18112289 + ... + 18113834.

It is an arithmetic number, because the mean of its divisors is an integer number (7009754994).

Almost surely, 2^28002793079 is an apocalyptic number.

28002793079 is a deficient number, since it is larger than the sum of its proper divisors (36226897).

28002793079 is an equidigital number, since it uses as much as digits as its factorization.

28002793079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36226896.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 28002793079 in words is "twenty-eight billion, two million, seven hundred ninety-three thousand, seventy-nine".